A file system is the logical structure to organize (store, retrieve and update) data on a storage device.

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Difficulty repairing SD card partition with fsck or e2fsck and using umount

I had problems with the SD card for 2 weeks. It made OS show corrupted messages and rebooted the phone as well. I managed to check the data block integrity with Minitool and no sectors were damaged. I ...
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1answer
29 views

Android locked MicroSD card (all files read-only)

I own a Wiko Rainbow with Android 4.2.2. Out of the blue my MicroSD card got locked and I can neither create nor delete any files on my phone (such as photos). At first, I did not even understand why, ...
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1answer
4k views

Does Android support the EXT (filesystem) for removable storage cards?

As the subject indicates, does Android support any of the Extended File Systems ("ext", "ext2", "ext3" and "ext4") for removable storage cards (such as Micro SDXC storage cards)? Android is a Linux-...
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16 views

How to make bind-mounted (mount -o bind) folders visible for non-root users?

I want to mount-bind an app data folder in /data/data/... to a user subfolder in order to automatically synchronise the contents for backup purposes. As root I use the following command: mount -o ...
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1answer
5k views

XT1064 - 5.0.1 - Rooted - Issues with writing to /sdcard

I just rooted my Moto G 2014 XT1064 running 5.0.1. I used this article to do the root process: http://maktechblog.com/how-to-unlock-the-bootloader-and-root-the-motorola-moto-g-2nd-gen/#Root Which ...
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0answers
32 views

read-only file system on emulator

I need to change /system/etc/hosts file on my emulator, and no matter what I do, I get "read-only file system" error. Does anyone know how to do it? I tried editing the file manually as su in adb ...
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1answer
2k views

Corrupt Internal Storage File System

I am using an original RAZR that is partitioned using Safestrap running stock 4.1 on one partition and CM10.1 on the other. My problem is the internal storage (internal SD card I believe) partition ...
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98 views

I can't remount /system as rw. I get an error message: mount: Read-only file system

I'm using a rooted Huawei G7 and i'm trying to install BusyBox, but I keep getting an error. I'm 100% sure this error is because there is some weird write protection on /system. I know this because ...
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0answers
75 views

Check and fix external SDCard within Android Marshmallow, formated as internal

This is very similar to this question, except now in 6.0-marshmallow. The external sdcard is now mounted as a fuse device: /dev/fuse on /storage/emulated type fuse (rw,nosuid,nodev,noexec,noatime,...
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37 views

how to restore mount points

i have a bricked device , after 20 hours of flashing and searching , i found that my device lost some mount points here is the the mount points of my device and here is the mount points of a ...
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2k views

Creating a symlink (symbolic link) to files

I'm looking for a way to create a symlink with Android. I know I can write a script but I don't want to spend so much time when perhaps somebody has a better solution? I know app2sd and link2sd, but ...
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0answers
19 views

How do Android Communicate with Storage or External Storage?

I Wants to know that how the android os is communicating with the storage devices, as because I have two USB Devices from same vendor (ScanDisk) and of equal size (8 GB) and having same File System (...
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0answers
31 views

What is the local path (on the Android device) to files accessible over USB storage?

I have my device connected by "Mass storage (UMS)" and with "USB storage" selected. On the PC, this allows me to mount the device successfully, and give a listing of files. However, what is the local ...
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4answers
101k views

Where can I find the OTA update file?

I'm trying to locate the zip file that contains the OTA update for my Droid Bionic. Right now, its failing to update, and every time it fails it deletes the file and I need to re-download it (takes a ...
2
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1answer
3k views

How (where) do I browse to the /data/Tombstones (on the System Partition, I think)?

Trying to delete some files from my System partition. Someone suggested deleting /data/Tombstones (I.e., what's the Path to it so I can browse to it) Using Astro File manager I navigated from the ...
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1answer
54 views

How can I know which file system is used for my internal storage?

I want to know whether my internal storage is formatted as exFAT, FAT32, ext4, etc. How can I tell? I run rooted Android 5.0, if it matters.
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9 views

cant mount /system as rw [duplicate]

I have a rooted Huawei P8. A few days after root every google related app stopped working. The problem is at the hosts file, it just wont let me edit it. Ive tried various file explorers, ES, FX, ...
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1answer
2k views

Unable to delete a file in /data/data with root permissions

I own a Moto G which is in 5.0.2 with KK bootloader. An app created a folder in /data/data which sustains in the memory even after uninstallation of the app. I couldn't remove the folder in any way. ...
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0answers
20 views

How to add files onto phone via sshdroid

I have SSHDroid installed on my phone, and I am currently able to download files from my phone with the following command: rsync -e 'ssh -p 2222' -avzh --progress root@192.168.1.141:/storage/self/...
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0answers
19 views

Why is moving images in gallery apps so slow?

QuickPic, F-Stop, Samsung's Gallery app - all are extremely slow at moving images from one folder to another, both on the same microSD card. Why is that? Moving a file within the same file system ...
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1answer
5k views

Corrupt SD card formatted as internal storage

So I'm on Marshmallow and have formatted my SD card as internal storage. Its filesystem got corrupt two weeks later for some reason. Plugging it to GParted, I see 16MB of FAT32 and the rest is an ...
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1answer
73 views

Why is Android 5 corrupting my SD card (moving files to LOST.DIR or losing them)?

I've been using VFAT formatted SD cards for years to transfer files between devices (tablets, cameras, GPS, computers) under different OS (Linux, Windows, Symbian, Android) without, as I recall, any ...
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2answers
14k views

Best file system for an external SD card

I have a Galaxy S5 with Android 5 and got a new 64 GB SD card. What is the best file system for the SD card? FAT32 is not an option because I want files >4GB. Which file system offers the best ...
2
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1answer
26 views

How to create a file folder for use with Listen Audiobook player

I can't figure out how to use this Listen book player, I've Installed. First I see this. Hitting OK, I see this: I can't understand how to tell it where to find my books. I've downloaded one ...
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0answers
32 views

Where are all the folders associated with an application?

On Linux, a given package will typically install command-line binaries in /usr/bin, shareable, install-independent data in /usr/share, system-wide configuration files in /etc, and user-specific ...
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5answers
41k views

How can I view the Android internal partition table?

I've rooted my device, put it in recovery mode, and have linked it to PC by adb shell. How can I view the list of storage devices and partitions? Note: fdisk doesn't work.
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0answers
31 views

How to know the device's microSD card reader specifications?

In my opinion, for clarity and transparency before purchasing a device, it would be necessary that manufacturers clearly indicate on the data sheets of their devices more information about the device ...
2
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2answers
866 views

Where in the filesystem are settings saved? Namely ADB backup password

Where in the phone filesystem are settings saved? I've lost my ADB backup password and simply want to delete it. If it affects other settings that won't matter too much. I will be interfacing the ...
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1answer
95 views

When an app is moved to an external microSD card, to where is it moved? [duplicate]

In Android KitKat on many devices, it is simple to move an app to an external microSD card. It's as simple as Settings -> Apps -> [Select the app] -> Move to SD card. For apps whose manifest allows ...
2
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1answer
364 views

Replaced /system/bin/toolbox. How to I revert that?

I renamed the original /system/bin/toolbox" to "toolbox_alt". I replaced the file /system/bin/toolbox with a file that was supposed to work, but doesn't work at all. My filemanagers and the most ...
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0answers
22 views

Where to place temp files? (with file permissions)

I'm currently developing a Rooting method for my device. I want it to be possibly executed right from a Terminal emulator, as the default shell user (not root), so that it doesn't require a PC. The ...
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6answers
150k views

Check and fix SD card errors within Android itself?

Sometimes my SD card gets "corrupted" and this leads to many read/write errors. Usually, connecting the SD card to the windows 7 and selecting the "Error Checking" (Right click the drive > Tools > ...
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0answers
50 views

ePub files disappear after upgrade to Lollipop

I use my Galaxy Tab 4 mainly for reading, and so had a collection on of PDFs and epubs stored on the device. I connected it to wifi and it asked to upgrade from KitKat to Lollipop which I did. After ...
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0answers
356 views

Periodic filesystem checks are a very good idea. Do any major flagship devices ever do them automatically?

It's a very good idea for your OS to do periodic filesystem checks. Here's why. Microsoft program manager Kiran Bangalore writes that there are certain cases in which a filesystem can become ...
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1answer
167 views

How to resize the /data F2FS partition

I've wiped all partitions from my Motorola XT1040 with the TWRP recovery, and installed Cyanogen 13 on it. Then I run into problems when trying to enable Encryption. The phone just restarts and ...
0
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1answer
53 views

Internal memory (sdcard0) not writable - Android 4.3 - Xperia T (LT30p)

After a bootloop that I experienced after messing around with Android, I flashed a stock ROM to my LT30p using FlashTool. Everything went smoothly, except for the fact that I can't create files in ...
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0answers
55 views

Why are my MP3 files not showing in Windows file browser?

I uploaded MP3 files in the Music folder on my Nexus 5 a few weeks ago. Today, I want to erase some of them to make space, but there are no files or folders showing in my Windows files browser when I ...
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144 views

Edited build.prop of HCl me sync 1.0

I recently rooted my HCl me sync 1.0(u3) and changed the build.prop to download some unsupported app. But when I rebooted the tab it stuck in a bootloop(with the screen orientation changed). I have a ...
3
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1answer
68 views

Why file managers badly recognizes SD cards

If I am understanding well...file managers mostly title some part of file system as "SD card" despite the fact that it is not SD card, or even sometimes when the phone doesn't have a slot for SD card ...
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1answer
56 views

My /storage/emulated/0 and legacy can't execute scripts

All files in /storage/emulated/0 and /storage/emulated/legacy have permissions of -rw-rw---- and are owned by root and of the group sdcard_r. Even as root, if I do chmod 755 foo.bar it won't change ...
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0answers
41 views

I tried to send a large video file through whatsapp, it failed. miserably

I tried to send a rather large video file through whatsapp (4k, by accident). it was about 2.4GB's. However whatsapp goofed and duplicated the send (it was trying to send the file twice). So I ...
-1
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1answer
30 views

Where does the top-level structure come from?

Most Android devices that I am aware of programmed to mount the system partition at /system. All partitions get mounted at folders underneath /. Looking at my device's /proc/mounts shows that rootfs, ...
1
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2answers
4k views

How to turn off the camera shutter sound on LG G2 mini?

Where is located the camera shutter sound file on LG G2 mini (Android 4.4.2)? Or how else to turn that annoying sound off? None of the solutions recommended in similar questions here does work. The ...
21
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4answers
41k views

What's the Android equivalent of /etc/fstab?

Sometimes I really wish they hadn't messed around with Linux so much! I know there's an /etc/fstab in there somewhere, but where? I'd like to mount some partitions with alternative filesystems (...
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0answers
41 views

System not seeing sd card data

The strangest thing happened. I was installing an app, and all of the sudden, the screen went black and wouldn't turn on. I just turned off the device, and when I turned back on, a lot of apps had ...
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2answers
17k views

Cannot find where Google Play Music stores downloaded files (different from similar posts)

About a year or two ago, I decided to use Google Play Music as my "cloud host", so I took all of my old music that I'd had sitting on my computer, and uploaded it to Google Play Music. This is all my ...
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1answer
104 views

Access settings outside of settings app without a root

Is there a file hidden somewhere in the internal storage that contains all the system setting preferences? I want to be able to access and modify this file (if it even exists) without rooting my ...
2
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1answer
1k views

How do the various tools to convert a system image to f2fs work?

Recently I've been trying to install a f2fs compatible rom to my old and slow nexus7. I got as far as flashing a new recovery image and reformatting the device partitions to the new file system, but ...
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0answers
17 views

Sony Xperia file system

Hope someone can help, I find it really annoying when posting pictures from my phone or tablet as there's no folder options, I have to scroll through every picture on my phone to find the one I want. ...
0
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3answers
69 views

What's the easiest way to sync music to my phone?

I'm now on CM13 (Android 6) and rsyncing in will not work due to permission errors (and the sudo command doesn't exist) So I ask you, are there any programs to sync my music across? I don't want to ...